Let's face it. Sometimes, it's hard to be pleasant at the office when the workday gets stressful or in the morning at home when you just don't want to leave for work. You wish you could express your displeasure with those around you, but doing so could get you into trouble. That's why you need to have the Have a Nice Day Novelty Coffee Mug around to tell the world how you really feel! The mug is constructed out of durable ceramic, and both the message and the finger are printed graphics…